BROOK: We found a random alarm app and set it to ring three times between 11 P.M. and 8 A.M. We also put fourteen scraps of paper in a bowl, each slip describing a task we’d have to complete when the alarm went off during the night. It was our way of mimicking the exhausted stress of raising a newborn: never letting ourselves sleep for more than three hours straight for the next seven days. We needed a baby to take care of but didn’t want to traumatize an actual child, so we adopted a twelve-pound watermelon and named her “Mel.”

JILL: I knew it was pathetic, but I literally couldn’t stay awake any longer. I had already been up most of the night doing laundry and had to be at work leading a group presentation in three hours when Brook pulled the partnership activity. I needed my sleep, was that so terrible? The way Brook looked at me when I went back to bed seemed to say, Yeah, it’s a little bit terrible.